Hi, On Wed, 4 Nov 2015, Richard Biener wrote:
> Ah, it was _left_ shift of negative values that ubsan complains about. Note that this is only for the frontend definition of shifts. I don't see why gimple shouldn't define it to the only sensible definition there is, which also happens to be the one that all CPUs in the world implement (well, those using two-complement representation at least). Ciao, Michael.
